I think I've figured out how to show some Navionics tips over the Interweb without human interaction. It's easy to tell Navionics to show dangerous depths, and the depth you feel comfortable in. Here's my first stab at a tutorialette (Android version):

Is that any help?

I like the flexibility of using nav programs on a tablet. Especially the nav programs that handle raster charts and maps. I use OziExplorer, because it's a good program and I've used it for years, so I'm comfortable with it. I can use NOAA charts, topo maps (for the areas the charts don't cover), historic charts and maps (for fun, to see what things used to be like), and even aerial photos. OpenCPN can handle all those too, plus vector charts (like Navionics), and it's free(ish). I don't think I'd be happy with a proprietary nav system. But that's me...

We'll discuss OpenCPN in the Workshop, as well as Navionics.

On 3/15/2020 5:46 PM, Pete L wrote:
I would like to figure out how to develop a circular or perhaps a rectangular operating area, so that I can wander around in that area knowing I am always in safe water. I would also like to figure out how to develop the ability for the program to show my "keep out" areas (such as those areas less than 50 feet in depth).
I am moving to a Garmin Nav system this spring, but will continue to use Navionics as a backup.
John <@Jkohnen>
History is the autobiography of a madman. (Alexander Herzen)
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